> ## Documentation Index > Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt > Use this file to discover all available pages before exploring further. # Create the activity steps > Build the steps and substeps for the Pega CaptureData activity that open the case attachment, call the FlexiCapture library, and apply the JSON Data Transform. The **CaptureData** activity needs four main steps on the **Steps** tab, plus six substeps that do the processing. ## Create the main steps Create a new step and set the following fields: | Field | Value | | ------------------ | -------------------- | | **Method** | `Obj-Open-By-Handle` | | **Step page** | `Case` | | **InstanceHandle** | `Param.CaseId` | Screenshot of the first step in Pega configured with the Obj-Open-By-Handle method, the Case step page, and an InstanceHandle of Param.CaseId. Create a second step and set the following fields: | Field | Value | | --------------------- | -------------------------------------------------------------- | | **Method** | `Call RemoveFromPageList` | | **PageListProperty** | `LineItems` | | **Index** | `1`, the index of an empty string that Pega creates by default | | **FinishingActivity** | `""`, an empty string | Screenshot of the second step in Pega configured with the Call RemoveFromPageList method, a PageListProperty of LineItems, an Index of 1, and a FinishingActivity set to an empty string. Create a third step and set the following fields: | Field | Value | | ------------------- | -------------- | | **Method** | `Property-Set` | | **PropertiesName** | `Local.Index` | | **PropertiesValue** | `0` | Screenshot of the third step in Pega configured with the Property-Set method, a PropertiesName of Local.Index, and a PropertiesValue of 0. Create a fourth step, select `Property-Set` in the **Method** field, and create the `Local.LinkedRefTo` and `Local.Id` parameters: | PropertiesName | PropertiesValue | | ------------------- | --------------------------------------------- | | `Local.LinkedRefTo` | `Case.pyAttachments().pxLinkedRefTo` | | `Local.Id` | `Case.pyAttachments().pzInsKey` | Screenshot of step 4 in Pega using the Property-Set method, with Local.LinkedRefTo set to the pxLinkedRefTo of the current Case.pyAttachments element and Local.Id set to its pzInsKey. ## Add a loop and a condition to the fourth step Add a loop to the fourth step. Set **Repeat** to **For each element in value list** and the **Value List Property** to `Case.pyAttachments`. Screenshot of the Loop dialog in Pega for step 4, with Repeat set to For each element in value list and the Value List Property set to Case.pyAttachments. Then add a **When** condition to the same step so that the activity processes only the first attachment: | When | if true | if false | | ---------------- | -------------- | --------- | | `Local.Index==0` | Continue Whens | Skip Step | Screenshot of the When conditions dialog in Pega for step 4, with the condition Local.Index==0 set to Continue Whens if true and Skip Step if false. ## Create the six substeps Create six substeps related to the fourth step. To create a substep, create a new step and drag it into the fourth step. | Field | Value | | ------------------ | -------------------- | | **Method** | `Obj-Open-By-Handle` | | **Step page** | `Attachment` | | **InstanceHandle** | `Local.LinkedRefTo` | Screenshot of the first substep in Pega configured with the Obj-Open-By-Handle method, the Attachment step page, and an InstanceHandle of Local.LinkedRefTo. | Field | Value | | ------------------ | -------------------- | | **Method** | `Obj-Open-By-Handle` | | **Step page** | `AttachmentInfo` | | **InstanceHandle** | `Local.Id` | Screenshot of the second substep in Pega configured with the Obj-Open-By-Handle method, the AttachmentInfo step page, and an InstanceHandle of Local.Id. Select `Property-Set` in the **Method** field and create the following parameters: | Parameter | Value | | --------------------- | ------------------------------------------------------------------------------------ | | `Param.jsonData` | `@FlexiCaptureLibrary.CaptureData(AttachmentInfo.pyMemo, Attachment.pyAttachStream)` | | `Param.executionMode` | `DESERIALIZE` | After the `@` character, specify the name of the library, and after the dot, specify the name of the function. For both, see [Create a Java function in Pega](/flexi-capture/connectors/pega/pega-installation-2#java). Screenshot of the third substep in Pega configured with the Property-Set method, a Param.jsonData parameter set to the FlexiCaptureLibrary CaptureData function, and a Param.executionMode parameter set to DESERIALIZE. Then click **Jump** and add a `StepStatusFail` parameter for error handling: | When | if true | true param | if false | false param | On exception, jump to later step label | | ---------------- | ------------------ | ---------- | ------------------ | ----------- | -------------------------------------- | | `StepStatusFail` | Jump to Later Step | `ERR` | Jump to Later Step | `OK` | `ERR` | Click **Submit**. Screenshot of the Jump conditions for the third substep in Pega, with a StepStatusFail condition that jumps to later step ERR if true and OK if false, and an on-exception label of ERR. Select `Page-Set-Messages` in the **Method** field, set the `Message` parameter to `@getWorstMessageName(tools)`, and mark this substep as `ERR`. To stop the activity performing any subsequent steps when an error occurs, click **Jump** and add the following parameters: | When | if true | true param | if false | false param | | ------ | ------------------ | ---------- | ------------------ | ----------- | | `true` | Jump to Later Step | `INC` | Jump to Later Step | `INC` | Screenshot of the Jump conditions for the fourth substep in Pega, with a When value of true that jumps to later step INC for both the if true and if false branches. Select `Apply-DataTransform` in the **Method** field and set the `DataTransform` parameter to `JsonToInvoiceFields`. Mark this substep as `OK` and select the **PassParameterPage** option. Screenshot of the fifth substep in Pega configured with the Apply-DataTransform method, the JsonToInvoiceFields data transform, the PassParameterPage option enabled, and labeled OK. Select `Property-Set` in the **Method** field, create a `Local.Index` parameter, and set it to `Local.Index + 1`. Mark this substep as `INC`. Screenshot of the sixth substep in Pega configured with the Property-Set method, a Local.Index parameter set to Local.Index plus 1, and labeled INC. Your list of steps and substeps should now look as follows. Screenshot of the Steps tab in Pega showing the completed CaptureData activity: four top-level steps (Obj-Open-By-Handle, Call RemoveFromPageList, Property-Set, Property-Set) with six substeps under step 4 labeled ERR, OK, and INC. ## Finish the activity Click **Save**. Open the properties of the **Utility** item, select `CaptureData` in the **Rule** field, and set the **CaseId** parameter to `.pzInsKey`. Screenshot of the Utility item properties in Pega, with CaptureData selected in the Rule field and the CaseId parameter set to .pzInsKey. Save your changes.