Resolving Invalid next page search request Error in Microsoft Graph API for B2C Users

Tackle the common issue of `Invalid next page search request` when using Microsoft Graph API to paginate B2C users. Learn effective solutions and best practices in this comprehensive guide.
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This video is based on the question https://stackoverflow.com/q/68321002/ asked by the user 'Adam' ( https://stackoverflow.com/u/16416230/ ) and on the answer https://stackoverflow.com/a/68397213/ provided by the user 'Adam' ( https://stackoverflow.com/u/16416230/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Dealing with the Invalid next page search request Error when Paginating B2C Users using Microsoft Graph API

When working with Microsoft Graph API, developers often face various errors, particularly when dealing with pagination for different types of users. A common issue arises when trying to paginate B2C users, where you may encounter the error message: Invalid next page search request. This post will guide you through understanding why this happens and how to effectively resolve the problem.

Understanding the Issue

If you're attempting to pull B2C users and are using the same logic that successfully retrieves AAD (Azure Active Directory) users, you might be puzzled when it fails for B2C users. The error typically indicates an issue with how the Graph API manages paging when specific filters, like those based on user identities, are applied.

Error Breakdown

You may see the following details in the error:

Code: Request_UnsupportedQuery

Message: Invalid next page search request.

Inner Error Information: This may include timestamps, request IDs, and client request IDs.

These errors suggest that the request made to the API is valid through its structure but fails due to the query's unsupported elements.

Analyzing the Code Snippet

You may have written a code snippet that looks like this to paginate through B2C users:

[[See Video to Reveal this Text or Code Snippet]]

This code works under ideal circumstances but fails specifically with B2C due to how the filter is structured.

Why Does the Error Occur?

The core problem stems from the following:

Filters with Identities: When performing requests that utilize the identities filter, the Graph API provides a NextPageRequest even when it’s invalid for further pagination. Unfortunately, this limitation means that the API does not actually support paging for such queries, even if you receive a NextPageRequest object.

Proposed Solutions

1. Eliminate the Filter Condition

One potential fix is to remove the Filter condition altogether. This might allow for unrestricted pagination but would return all users, not just the filtered ones.

2. Paginate without Filter

If filtering is essential, consider fetching all users without filters first and then manually filtering the results:

[[See Video to Reveal this Text or Code Snippet]]

3. Retry Pagination with Adjusted Filters

If filtering is crucial, try using a different filter that is less complex and doesn't involve identities. For instance, you can filter based purely on properties that are guaranteed to support pagination.

Conclusion

Encountering the Invalid next page search request error while working with B2C users in Microsoft Graph API can be frustrating. Understanding the limitations of the API in relation to identity filters is crucial for effective pagination. By tweaking your approach—removing filters, retrieving unfiltered data first, or employing simpler filters—you can overcome this issue and continue building robust applications.

If you have any further questions or if this has helped you, please share your thoughts in the comments below!

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