Track Broadcast Reports

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Hi, I'm trying to figure out how to enter the correct value in the ISRC field. I purchased a software to insert the value but I don't understand if it is ID3v2.3 or ID3v2.4 or other. I entered TSRC as a custom tag with the value but it didn't work. Can anyone help me?
Do I have to wait every month's end to see if it works?
Thank you