# SAP CPI Message Volume and Cost Calculator

> Source: https://netray.co/tools/sap-cpi-monthly-message-volume-cost-calculator
> Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems.
> Section: Free Tools

## Short answer

Forecast monthly Cloud Integration message volume and cost per interface so you can budget before volumes surprise you.

## Category

sap

## Erp

SAP Integration Suite

## Audience

- SAP integration architect
- SAP integration developer
- IT finance

## Tool

**Kind:** calculator

**Currency:** $

**Inputs:**

#### Number of active interfaces

**Key:** interfaces

**Type:** number

**Default:** 25

**Min:** 1

**Step:** 1

**Unit:** interfaces

#### Average inbound messages per interface per day

**Key:** msgs_per_day

**Type:** number

**Default:** 2000

**Min:** 0

**Step:** 100

**Unit:** messages

#### Days in the month

**Key:** days

**Type:** number

**Default:** 30

**Min:** 28

**Max:** 31

**Step:** 1

**Unit:** days

#### Messages retried or resent

**Key:** retry_pct

**Type:** number

**Default:** 3

**Min:** 0

**Max:** 100

**Step:** 0.5

**Unit:** %

**Help:** Resends caused by errors, timeouts or partner re-requests.

#### Average messages generated per inbound message

**Key:** split_factor

**Type:** number

**Default:** 1

**Min:** 1

**Step:** 0.5

**Help:** A splitter turning one batch file into many outbound messages multiplies the count.

#### Average payload size

**Key:** payload_kb

**Type:** number

**Default:** 40

**Min:** 1

**Step:** 5

**Unit:** KB

#### Your contract rate per 1,000 messages

**Key:** price_per_1000

**Type:** number

**Default:** 1

**Min:** 0

**Step:** 0.1

**Unit:** per 1,000

**Help:** Enter the rate from your own SAP agreement. This tool does not assume list prices.

**Outputs:**

#### Base monthly messages

**Key:** base_msgs

**Expr:** interfaces * msgs_per_day * days

**Format:** integer

#### Total billable-style messages

**Key:** total_msgs

**Expr:** base_msgs * (1 + retry_pct / 100) * split_factor

**Format:** integer

**Primary:** true

**Description:** Base volume plus retries, multiplied by split factor.

#### Average messages per second

**Key:** per_sec

**Expr:** total_msgs / (days * 86400)

**Format:** decimal

#### Monthly payload volume

**Key:** payload_gb

**Expr:** total_msgs * payload_kb / 1048576

**Format:** decimal

**Description:** Gigabytes processed per month.

#### Estimated monthly cost

**Key:** cost

**Expr:** total_msgs / 1000 * price_per_1000

**Format:** currency

**Primary:** true

#### Cost per interface per month

**Key:** cost_per_if

**Expr:** cost / interfaces

**Format:** currency

**Chart:**

#### Monthly cost vs number of interfaces

**Type:** line

**X:** interfaces

**From:** 1

**To:** 100

**Steps:** 25

**Series:**

- cost

**Disclaimer:** Budgeting aid. How messages are counted and priced depends on your SAP contract and metric, so check your agreement before relying on the cost figure.

## Content

**Intro:** Integration platforms are easy to start and hard to forecast. This calculator builds a monthly volume from interface count, daily traffic, retries and splits, then prices it at the rate in your own agreement.

**Sections:**

#### How to use it

**Body:** List your active interfaces and estimate average inbound messages per day for each from monitoring in the message processing view of your tenant or from the sender system. Add the retry percentage you see in failed message statistics and a split factor if any iFlow splits a batch into individual messages. Enter the rate per thousand messages from your contract. Nothing here assumes a list price, because commercial terms differ by customer and change.

#### The formula

**Body:** Total messages equal interfaces times messages per day times days, increased by the retry share and multiplied by the split factor. Cost is total divided by 1,000 times your rate. Payload volume multiplies messages by average size to give gigabytes processed, which matters for memory, timeouts and any data volume based limits. Messages per second is a flat average and understates peaks, so use it only for order of magnitude capacity thinking.

#### Reading the result

**Body:** The per-interface cost helps you spot interfaces that are expensive relative to business value, for example a polling interface that fires every minute and returns nothing. Compare the monthly total with what you are entitled to. If a splitter drives the volume, check whether the downstream system can accept a batch, since that can cut counted messages by orders of magnitude.

#### Common mistakes

**Body:** People forget that a request-reply scenario or a multicast to three receivers may generate more than one counted message. Others leave out test and quality tenants, error alerts, and retries from partners using aggressive timeouts. Always reconcile your forecast with the first full month of tenant monitoring and with how SAP defines a message in your contract.

**Cta:** If you want a monitored view of interface volumes across CPI, IDocs and OData in one place, Netray can build a private reporting layer for your integration team.

**Faq:**

#### Is this SAP's official pricing?

**Answer:** No. It uses the rate you enter. Pricing metrics and what counts as a message are defined in your SAP agreement, so confirm there. The tool only does the volume arithmetic.

#### How do I get messages per day?

**Answer:** Use the monitoring view in your Cloud Integration tenant, filtered by integration flow and time range, or take counts from the sending system's logs for a representative period.

#### Do retries count?

**Answer:** They can add to volume, depending on how the retry occurs. A resend from the sender is a new inbound message, while internal retries of a queued message may be treated differently. Check your contract.

#### What is a split factor?

**Answer:** It is the average number of messages produced from one inbound message. An iFlow that splits a file of 100 orders into single orders has a factor of 100 for that interface.

## Search terms

sap cpi message volume, sap integration suite cost estimate, cloud integration message count, sap cpi licensing calculator, cpi retry message volume, sap cpi capacity planning, integration suite budget, sap cpi split gather volume

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