Source quality has an immediate effect on effort. Native spreadsheets and consistent digital forms can usually be processed faster than low-resolution images, mixed PDFs or handwritten records. If different source groups have different difficulty levels, they may be sampled and priced separately.
Field count is only one part of complexity. A short text field copied from a clear source is simpler than a product category selected from a controlled taxonomy, an invoice line checked against a purchase order or a contact compared with existing CRM accounts before creation.
Review requirements also matter. Some projects need format and completeness checks; others require source-to-output verification of priority fields, duplicate analysis, schema validation or a detailed exception register. The quotation should describe that quality work rather than hide it behind a vague rate.
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