A Lobby navigation link needs to pass two separate `$filter` conditions (like both a Project ID and a Sub Project ID) to the target page, but only one of the two ever actually gets applied no matter how the URL is structured.

Q: A Lobby navigation link needs to pass two separate `$filter` conditions (like both a Project ID and a Sub Project ID) to the target page, but only one of the two ever actually gets applied no matter how the URL is structured.

Combine both conditions into a single $filter= expression joined with a lowercase and — for example, $filter=ProjectId eq $[PROJECT_ID] and SubProjectId eq $[SUB_PROJECT_ID] — rather than repeating the $filter= keyword for each condition or joining them with &, both of which only carry the last condition through to the target page. An uppercase AND has been reported to trigger a "malformed URL" server error, so the lowercase form is the one that's been confirmed to work.

Answer

Combine both conditions into a single $filter= expression joined with a lowercase and — for example, $filter=ProjectId eq $[PROJECT_ID] and SubProjectId eq $[SUB_PROJECT_ID] — rather than repeating the $filter= keyword for each condition or joining them with &, both of which only carry the last condition through to the target page. An uppercase AND has been reported to trigger a "malformed URL" server error, so the lowercase form is the one that's been confirmed to work.

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