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Software architect in Berlin, focused on AI.

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AgentTravel · connected

How can I help?

9:41you

Trip 4712 is stuck in review. Hotel Wien is over the per diem. Check it against the policy and propose a correction.

Agent9:413 steps · 1.2 s

Trip 4712 checked. The receipt is 26 € over the policy. A proposal is ready for approval.

Receipt read246 €Policy 4.2220 €Proposal220 €· for approval

9:42you

Apply

Agent9:42

Done. 4712 saved and logged.

Agent9:58

Report Q4 is ready. 17 deviations · 2,340 €.

Report-Q4.docx · for approval

9:58you

Approve

Agent9:58

Approved · logged.

Message to agent

Travel expense check Q4Orchestrator · 4 agents · runningdone

OrchestratorPlan4 steps · 6.3 s

Check all Q4 trips against the per diem rates, find duplicates and write the report.

Q4 checked: 17 trips over per diem, 3 duplicates. Report ready for approval.

Receipts1,240Duplicates317Deviations ·2,340 €· Report readyfor approval ·SF

Readerreads receipts

Checkercompares per diems

Matcherfinds duplicates

Reporterwrites the report

Readerreads · 0 / 1,240 readReceipts.xlsx · 1,240 rows1,240Receipts read ·12Cities

No.CityAmount

4701Berlin142.00

4702Vienna246.00

4703Hamburg98.50

4704Munich188.00

4705Vienna231.00

4706Cologne120.00

4707Zurich310.00

4708Berlin134.00

4709Vienna220.00

4710Leipzig88.00

4711Paris95.00

4712Vienna246.00

4713Frankfurt165.00

Checkercompares · 0 deviationsPerDiem.xlsx · 48 rows17Deviations ·2,340 €over rate

No.CityReceiptRateΔ

4701Berlin142.00165–

4702Vienna246.00220+26.00

4703Hamburg98.50150–

4705Vienna231.00220+11.00

4707Zurich310.00260+50.00

4708Berlin134.00165–

4709Vienna220.00220–

4712Vienna246.00220+26.00

Matchermatches · 0 / 612 bookingsBookings.xlsx · 612 rows612Bookings ·3duplicate

BookingTripHotelStatus

B-22014701Motel Onebooked

B-22024702Hotel Wienbookedduplicate · B-2203

B-22034702Hotel Wienbooked

B-22044703Scandiccancelled

B-22074706Dom Hotelbookedduplicate · B-2208

B-22084706Dom Hotelbooked

B-22094707Marriottbooked

B-22114709Hotel Wienbookedduplicate · B-2212

B-22124709Hotel Wienbooked

Reporterwrites · Report Q4Report-Q4.docx · newReport ready ·2,340 €for approval

Travel expenses Q4 · check report

Receipts read, 12 cities1,240

Trips over the per diem17

Duplicate bookings, same trip3

Recommendation: 4 trips for follow-up4

Total over rate2,340 €

travel-app· main

Travel.view.xmltravel-service.js

1<mvc:View controllerName="travel.Main">

2 <f:DynamicPage title="Trips">

3 <fb:FilterBar id="filters"/>

4 <Table items="{/Travel}">

5 <Text text="{Agency}"/>

6 <ObjectNumber number="{Price}"/>

7 <ObjectStatus text="{Status}"/>

8 </Table>

1module.exports = srv => {

2 srv.before('UPDATE', 'Travel', r => {

3 const max = rate(r.data.city)

4 if (r.data.price > max)

5 r.reject(400, 'Over per diem')

6 })

TravelSearch⌘KSF

Trips

12 trips · 3 open · Q4 2026

Create

Status OpenAgencyPeriod Q4

No.AgencyPriceStatus

4714Sunshine Travel180.00Approved

4712Hotel Wien246.00In reviewOver per diem

4711Pan Travel95.00Approved

4709Flightbooker312.50In review

Trip 4712 not saved · Over per diem (220 €)×

cds watch · 1 service · sqlitelocalhost:4004

Projects.

All projects

Flexible data loading as SaaS on SAP BTP

Combine any source with any target, the app takes care of the data load.

Blogs, images, LinkedIn posts and more with AI

Generating content with AI: from creation to publication, all in one app.

editor / extending-rap-apps-cleanlyPublish

Outline

Extending RAP apps cleanly

Why extensions break

The way through the base layer

An example from the project

What stays of it

Extending RAP apps cleanly

Blog · draft 3 · last edited 8 minutes ago

An extension that starts at the wrong place lasts exactly until the next release. That is rarely down to the code and almost always to the layer it touches.

Why extensions break

Whoever overrides the behaviour directly inherits every change of the standard. The detour through the base layer costs a day and holds for years.

Assistant

Shorten the intro.

Cut to three sentences. Cover image done, graphic running.

Cover imageGraphic

Approved

Migrate BW logic to Datasphere with AI

The app reads legacy routines, translates them, a review marks every deviation, as SaaS on SAP BTP.

Z_REVENUE · Translation

Z_REVENUE.abapZ_FX_CONVERSION.abapZ_DOC_STATUS.abap

12345678

LOOP AT result_package
     ASSIGNING <fs>.
  SELECT SINGLE rate
    INTO lv_rate FROM zrate
    WHERE waers = <fs>-waers.
  <fs>-amount = <fs>-amount
                * lv_rate.
ENDLOOP.

AI · TranslationApply

Z_REVENUE to Datasphere

The routine fetches the rate per record at the key date. In the view this becomes a join on the rate table with the key date as a parameter.

Different from BW

Rate via join instead of SELECT SINGLE per row

Key date as parameter :p_keydate instead of lv_keydate

DeviationRounding: ABAP rounds to 2 places, the view keeps the raw value

SQL · Datasphere

SELECT t.belnr, t.waers,
  CASE WHEN t.waers <> 'EUR'
    THEN t.amount * k.rate
    ELSE t.amount END AS amount
  FROM revenue AS t
  LEFT JOIN zrate AS k
    ON k.waers = t.waers
   AND k.datum <= :p_keydate