How to indicate the relation of the task to the transaction stage?

Question

Bitrix24

On the maximum tariff plan "Company" used custom fields in tasks to mark the relation of the task to a certain stage of the transaction, but now the tariff "Team" and there are no custom fields for tasks, so I'm looking for an alternative how to indicate the connection of the task with the stage of the transaction.
My BP is associated with the deal and sequentially sets tasks depending on the stage of the deal, the outgoing webhook reacts to sending comments in tasks and sends data to the handler, which in turn takes links to files from the comments and fills in the multiple fields of the deal corresponding to the stages of the deal, and then links get into the description of the required task from the required transaction field - but such a scheme now does not work without custom fields.

Answer 1

I would suggest using the lists mechanism: create a technical list "Task -> Deal" and specify 2 fields: task ID and deal ID.
When creating a task from the BP, write this connection there.
But such a thing may not work if you definitely need to wait for the status of the task.