INVOICE PROCESSING

Apply Airtable Budget Rule Changes to Pending Invoice Lines

When a controller edits or adds a budget-mapping rule in Airtable, re-evaluates all pending uncategorized invoice lines against the new rule and moves any newly matched lines…

CategoryInvoice Processing
Enginesim
Difficultyintermediate
Triggerevent
Steps6
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerBudget rule added or edited in AirtableAirtableAirtable
  • ActionRead active ruleset and pending linesPostgreSQLPostgres
  • LogicRe-score pending lines against updated rules
  • LogicBranch: newly matched vs. still unmatched
  • ActionWrite newly matched lines to categorized tablePostgreSQLPostgres
  • OutputStamp Airtable rule with resolved line countAirtableAirtable

What it does

Controllers maintain their vendor-to-GL mapping rules in an Airtable base. When a rule is created or changed, this workflow re-runs the pending uncategorized invoice lines through the updated ruleset and reclassifies the ones that now match, shrinking the review backlog automatically.

When to use it

Use this when your mapping rules evolve mid-month and you don't want to wait for the next invoice to apply them retroactively. Editing one Airtable row should immediately clear matching items from the controller's queue.

How it works

  1. 1An Airtable record-changed event fires when a mapping rule is added or edited.
  2. 2The flow reads the full active ruleset from the Airtable rules table.
  3. 3It pulls the current pending uncategorized lines from Postgres.
  4. 4Each pending line is re-scored against the updated rules.
  5. 5A branch separates lines that now match a GL category from those still unmatched.
  6. 6Newly matched lines are written to the categorized-spend table and removed from the queue.
  7. 7The Airtable rule row is stamped with how many lines it resolved.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect AirtableBases, tables, views, automations.
  2. 2
    Connect PostgresAny Postgres URL — query, write, migrate.
  3. 3
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  4. 4
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  5. 5
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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