According to the PMBOK Guide, 6th edition, section 12.2.2.4, the project manager should use procurement documentation to define and manage the contractual relationships with the suppliers. Procurement documentation includes the contract, the statement of work, the procurement management plan, and the source selection criteria. The project manager should ensure that the project team, including the business analyst, is aware of the terms and conditions of the contract and the scope of work that the supplier is expected to deliver.
Any changes or additions to the scope should be formally requested and approved through the change control process, as described in section 4.6. The PMI-PBA Guide, section 6.3.3.1, also supports this approach, as it states that the business analyst should follow the change management plan and the requirements management plan to manage changes to the requirements and to communicate them to the relevant stakeholders, including the suppliers. References:
* PMBOK Guide, 6th edition, section 12.2.2.4 and 4.6
* PMI-PBA Guide, section 6.3.3.1
According to the PMBOK Guide, 6th edition, section 12.2.2.4, the project manager should use procurement documentation to define and manage the contractual relationships with the suppliers. Procurement documentation includes the contract, the statement of work, the procurement management plan, and the source selection criteria. The project manager should ensure that the project team, including the business analyst, is aware of the terms and conditions of the contract and the scope of work that the supplier is expected to deliver.
Any changes or additions to the scope should be formally requested and approved through the change control process, as described in section 4.6. The PMI-PBA Guide, section 6.3.3.1, also supports this approach, as it states that the business analyst should follow the change management plan and the requirements management plan to manage changes to the requirements and to communicate them to the relevant stakeholders, including the suppliers. References:
* PMBOK Guide, 6th edition, section 12.2.2.4 and 4.6
* PMI-PBA Guide, section 6.3.3.1