Your association needs its website to do something it does not do today. Maybe you need member data from your AMS to appear in a directory on the website. Maybe you need event registrations from the website to flow into your event management platform. Maybe you need form submissions to create records in your CRM.
You have three options. You can build a custom integration from scratch. You can buy a plugin or connector that someone else already built. Or you can connect the systems through a middleware platform like Zapier, Make, or Workato. Each option has different cost profiles, maintenance requirements, and long-term implications.
Most associations default to whichever option their developer suggests, which is usually whichever option their developer is most comfortable building. That is not a strategy. Here is a framework for making the decision deliberately.
Option 1: Buy a Plugin or Connector
What it means: You install a pre-built plugin, module, or connector that handles the integration. In WordPress, this might be a plugin that syncs your AMS data. In Drupal, a contributed module. In a headless CMS, a marketplace connector.
When to use it: When the integration you need is a common use case that other organizations have already solved. If hundreds of organizations connect WordPress to Salesforce, there is a mature plugin for it. Buying that plugin gives you the benefit of someone else is development, testing, and ongoing maintenance.
Cost profile: $0 to $500 per year for the plugin license, plus $500 to $2,000 for initial configuration, plus ongoing CMS and plugin update compatibility work.
Strengths: Lowest upfront cost. Fastest to implement. Maintained by someone else. Benefits from community testing and bug reporting. Updates automatically when the external API changes (if the plugin developer is responsive).
Risks: You are dependent on the plugin developer. If they abandon the plugin, you inherit an unmaintained integration. The plugin may not handle your specific edge cases. You have limited control over how data is mapped and transformed. Plugin conflicts with other plugins are a real risk, especially in WordPress.
Best for: Standard connections to major platforms (Salesforce, HubSpot, Mailchimp, Stripe). Simple data flows that do not require custom transformation. Organizations with limited development budgets.
Option 2: Build a Custom Integration
What it means: Your developer writes code that connects your website to the external system using its API. The integration is purpose-built for your specific requirements, data structures, and workflows.
When to use it: When your integration requirements are specific to your organization and no existing plugin covers them. If you need bidirectional sync between your AMS and your website with custom field mapping, role-based data visibility, and automated conflict resolution, a plugin probably will not cut it.
Cost profile: $5,000 to $40,000 for initial build depending on complexity. $2,000 to $8,000 per year for maintenance. Higher upfront, lower ongoing if built well. We add up what associations actually pay to keep systems connected in our post on the true cost of an integration.
Strengths: Built exactly for your needs. You control the code, the data flow, and the behavior. Can handle complex business logic, custom field mapping, and edge cases that plugins cannot. No dependency on a third-party plugin developer.
Risks: Higher upfront cost. Requires a capable developer. You own the maintenance burden. If the developer who built it leaves, someone else needs to understand the code. Custom code is custom responsibility.
Best for: Complex, bidirectional data flows. Integration with niche AMS platforms that lack plugin support. Workflows that involve custom business logic (automatic role assignment based on membership tier, conditional data sync based on member status, etc.). Organizations with ongoing development resources.
Option 3: Connect Through Middleware
What it means: You use a platform like Zapier, Make (formerly Integromat), Workato, or n8n to connect your systems without writing code. Middleware platforms provide pre-built connectors to thousands of applications and let you configure data flows through a visual interface.
When to use it: When you need to connect systems that do not have direct plugin support but do have Zapier or Make connectors. When the integration is simple enough to express as "when X happens in System A, do Y in System B." When you need a quick solution and can accept the operational tradeoffs.
Cost profile: $20 to $500 per month for the middleware subscription depending on volume and complexity. Minimal development cost for setup ($500 to $2,000). Ongoing subscription cost that scales with usage.
Strengths: Fast to set up. No custom code required. Non-developers can often configure and modify the flows. Good for prototyping integrations before committing to a custom build. Handles many common connection patterns without development.
Risks: Ongoing subscription cost that accumulates. Rate limits and execution delays (Zapier free plans check for triggers every 15 minutes, not in real time). Limited ability to handle complex data transformations. Data passes through a third-party service, which has security and compliance implications. If the middleware platform changes its pricing, connectors, or terms, you are affected. Harder to debug when something goes wrong because the logic is spread across a visual flow rather than readable code.
Best for: Simple, event-driven connections (form submission creates a CRM record, new blog post triggers a social media update). Prototyping integrations to validate the data flow before investing in a custom build. Connecting systems where no direct plugin exists but both have middleware connectors. Organizations without development resources.
The Fourth Option: Consolidate
Sometimes the best integration strategy is to eliminate the need for integration entirely. If your AMS has a built-in event management module, using it instead of a separate event platform removes an integration. If your email marketing platform can handle web forms, you may not need a separate form plugin with a middleware connection to your email tool.
When to use it: When you are paying for two tools that overlap significantly in functionality. When the integration between the two tools is fragile or expensive to maintain. When "good enough in one platform" serves your organization better than "best-in-class in two platforms that barely talk to each other."
Strengths: Eliminates integration cost entirely. Simplifies your technology stack. Reduces maintenance burden. Fewer vendors to manage. Simpler data governance.
Risks: You may lose functionality that the specialist tool provided. Vendor lock-in increases when you consolidate more functions into fewer platforms. Migration cost to move data from the tool you are leaving.
The Decision Matrix
Here is how to decide:
Is it a standard connection to a major platform? Buy the plugin. Do not reinvent what the market has already solved.
Is it specific to your organization with complex business logic? Build custom. The upfront cost is higher but the fit is exact and you own the code.
Is it a simple trigger-action flow with no complex transformation? Use middleware. Fast, cheap, and no code required.
Are you connecting two tools that overlap in functionality? Consider consolidation. The cheapest integration is the one you do not need.
Are you unsure which approach is right? Prototype with middleware first. Build the flow in Zapier or Make, validate that the data exchange works and delivers value, then decide whether to keep it on middleware or invest in a custom build.
The Mistake to Avoid
The most common mistake associations make is defaulting to custom development for everything. A developer builds a custom integration for something a $99-per-year plugin handles perfectly. The association pays $8,000 upfront and $2,000 per year to maintain code that solves a problem someone else already solved and maintains for $99.
The second most common mistake is the opposite: using middleware for everything, including complex flows that middleware was not designed to handle. A fifteen-step Zapier workflow with conditional logic, data transformation, and error handling is harder to maintain and debug than equivalent custom code.
Match the tool to the job. Simple connections get simple solutions. Complex connections get custom solutions. Everything in between gets the option that best fits your budget and capacity.