Hi Tiansi, I'm Kevin from the Google Ads API Team.
I suggest creating a brand new asset group with the new set of headlines along with the other existing assets. Once a new asset group has been created, then you may remove the old one that is no longer needed. Otherwise, you will need to send multiple create and remove requests in order to update the headlines of an asset group while staying within its minimum and maximum limits. For example, you may add 2 new headlines first, remove 2 older headlines that should be replaced, and then repeat this for process for the last remaining pair of new and old headlines. Let me know if you have any further clarifications or if you encounter any issues. Regards, Kevin Gil Google Ads API Team ref:_00D1U1174p._5004Q2iWlAJ:ref -- -- =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ Also find us on our blog: https://googleadsdeveloper.blogspot.com/ =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ You received this message because you are subscribed to the Google Groups "AdWords API and Google Ads API Forum" group. To post to this group, send email to adwords-api@googlegroups.com To unsubscribe from this group, send email to adwords-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/adwords-api?hl=en --- You received this message because you are subscribed to the Google Groups "Google Ads API and AdWords API Forum" group. To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/Wml2L000000000000000000000000000000000000000000000RPPM4G008aICzZK4Qn6Vc98KE3cdTA%40sfdc.net.