Hello there,
From Google Ads API document, to remove bids, we can set the field back to null. Ref:
However, this can't be done by the .NET client library since adGroup.TargetCpaMicros and adGroup.CpcBidMicros are long type. We can't set value to 0 on Ads API like we used to be able to be able to do with Adwords API, the call to Ads API will return "Too low" error.
Could you please share the valid way to remove bids?