Using Job Level Approval through BPM or FSM
SummaryRequirement is to use Job Groups of user in serial based on Amount Limit and within Group approval should go to parallel like first responder win
Business Requirement is like, They want to use a Job Groups and some group having single and some groups is having Multiple users assigned in that. And those Job Groups want to use in Approval for Purchasing Documents.
So, if Limit is Less than 5k then approval should go to Buyer_Job (Buyer_Job is having only one User 'X')
And if Amount Limit is 5K to 10K then approval should go to Buyer_Job and MGR_Job, where MGR_Job is having Multiple User 'Y' & 'Z'.