Correlate field with issue approver

[Fernanda de Souza Thaumaturgo]

Good afternoon,

I created an invoice approval service and when choosing the supplier from a select list I would need the approver field to be directly related to the contract manager.
I want to register a list of suppliers and their corresponding contract manager (approver).
How can I do this?
I thought of creating different approver groups and vindicating it to a "approver supplier 1", "approver supplier 2", "approver supplier 3" .... field but there's no way in the workflow to choose more than one field to get the approver's name. You can only choose one field ex "approver field" .
My idea was to do some automation that would copy the value of the field that is filled in "approver of 1"
or "vendor approver 2" ... for the "approver field".
Does anyone know how I can do this?

[Alexander Bondarev]

Hi!

You can do it using apps like JMWE or Scriptrunner, for example "Copy field value from field to field". 

So in workflow transition you will use single field, for example "Approvers", then by post-functions on transitions can copy value from other field("vendor approver 2" etc) in case of approval stage.