MySQL error 1236 When using GTID

Hi, I was trying to migrate managed MySQL in Alibaba cloud to azure for MySQL using GTID-based replication.
I follow [this](https://docs.microsoft.com/en-us/azure/mysql/howto-data-in-replication) instruction, but I keep getting an error
` Got fatal error 1236 from master when reading data from binary log: 'The slave is connecting using CHANGE MASTER TO MASTER_AUTO_POSITION = 1, but the master has purged binary logs containing GTIDs that the slave requires.`
so is there any way to change the `gtid_purged` variable?

Start with the linked Azure Database for MySQL data-in-replication instructions and the reported MySQL error 1236. Investigate whether the managed service supports changing gtid_purged and identify the supported migration path for this GTID replication scenario.

Written by the indexing model from the issue text.