Platform & System

CONCURRENT_MODIFICATION Concurrent Modification Error

System API Platform

Multiple simultaneous requests tried to modify the same entity (campaign, ad group, or ad) at the same time, creating a conflict. TikTok's API doesn't support concurrent writes to the same object.

What causes this error?

Multiple simultaneous requests tried to modify the same entity (campaign, ad group, or ad) at the same time, creating a conflict. TikTok’s API doesn’t support concurrent writes to the same object.

How to fix it

Implement proper request queuing. Ensure your system processes modifications to the same entity sequentially, not in parallel. Use mutex/locking mechanisms if you have distributed workers modifying the same campaigns.

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