When the monthly security invoice arrives, procurement may have a billed amount while operations has a shift schedule. These documents do not necessarily describe the same thing. One may reflect a fixed monthly fee and the other a staffing plan. Begin by identifying the contract item and unit of measurement behind the charge.
Coverage of a duty during specified hours is different from a record showing a particular employee's working days. Service may have continued despite a personnel substitution. Conversely, a name on a schedule does not alone verify delivery.
Academic basis and application
Selviaridis and Wynstra's review of performance-based contracting identifies performance definition and evaluation as central contract-management issues. [1] It does not provide a universal method for calculating security invoices. Our recommendation is to compare the charging definition with evidence of service on the same basis.
Read the pricing arrangement first
The agreement may use a fixed monthly fee, hourly charging or a separate additional-service item. The same service record can have different implications under these models. An apparent shortfall in hours should therefore not become an automatic deduction without reviewing the agreement.
Read the charging unit, covered period and change provisions together. If finance, procurement and operations use different spreadsheets, a shared contract-item reference can help them reconcile the same activity.
The UK Contract Management Playbook emphasises checking invoices against the relevant contract provisions. [2] We use this as a management principle; actual payment and contractual decisions should follow applicable Turkish requirements.
Bring three records together
Our proposed reconciliation compares:
- The originally agreed service scope and charging unit.
- Changes authorised during the period.
- Records and explanations confirming what was delivered.
Cross-reference these records to preserve how the final position was reached. Record when a change applied, which period it affected and who approved it.
Work through an illustrative difference
Suppose an additional-service item initially covers eight hours, followed by a discussion about a two-hour extension. If the invoice charges ten hours, establish the requested scope of the extension, whether an authorised approval exists and whether the service record confirms delivery.
If the approval record is missing, clarify the gap and investigate the cause of the difference. Separate unresolved items and refer them to the authorised contract contacts.
Identify the information needed for service verification
The information a client needs to confirm delivery may not require every employee's complete pay and personnel details. Determine the appropriate disclosure alongside applicable legal duties. Our proposed reconciliation record focuses on the service unit, period, delivery and approval.
Confirming service hours should not be interpreted as replacing separate employment-related obligations. Retain the assessment of the organisation's relevant specialists on those matters.
Make the following month easier
When reconciliation is complete, record the cause of any difference and the agreed decision. If the same item repeatedly creates confusion, feed the clarification into contract administration.
Invoice review should help both parties use the same service definition. A traceable explanation of the reconciliation also makes the following month's review easier.
