Code and Change Review Assistance for Customer Data Import and Migration: Multi-turn Dialogue and Prompt Engineering

This type of data mostly originates from customer legacy systems, CSV or Excel templates, database exports, and product import logs. Update frequency

What the data for this use case looks like

This type of data mostly originates from customer legacy systems, CSV or Excel templates, database exports, and product import logs. Update frequency is per order or irregular. Associated daily documents include data templates, migration plans, field mapping tables, and migration validation reports. Core work steps include field mapping confirmation, dirty data cleaning, and post-import sampling verification. Data structure varies across customer business systems. There are no unified fixed fields or unit standards. Adaptation must be performed based on the customer's actual business scenarios.

The diversity of data sources requires multi-turn dialogue to adapt to inputs in formats such as CSV, Excel, and database exports. Prompts must clearly guide corresponding format verification rules. The irregular update frequency means dialogue context must fully retain each field mapping and dirty data cleaning record to avoid repeated communication. The multi-type nature of daily documents requires multi-turn dialogue to gradually guide the organization of key information in data templates and migration plans, reducing information omissions. The non-standardized nature of fields and units requires prompts to repeatedly confirm field correspondence to avoid field misalignment or data loss during subsequent import.

How to configure the settings

The following configurations are adapted for FastGPT v4.17.0.

Configuration ItemRecommended SettingRationale
Context window sizeFirst 8 turns of dialogue + latest 1200 charactersAdapts to multi-step communication during migration, retains key mapping and cleaning records, avoids context overflow
variables scopeDialogue-level isolationPrevents confusion of import data variables across different customers, ensures each user can only access their own dialogue data
messages format verification rulesForce splitting by role (user/assistant)Ensures dialogue history can be parsed correctly, facilitating subsequent interface calls and record tracing
Multi-turn verification trigger frequencyTrigger field mapping verification every 3 interactionsMatches the rhythm of the time-consuming field mapping confirmation step, avoids overly interrupting the communication flow
Dialogue persistence bindingEnable and bind chatIdEnsures different users in shared applications only view their own dialogues, meeting business security requirements

Three common configuration errors

  • Symptom: Different users in a shared application can view each other's dialogue records. Cause: The dialogue was not bound to chatId and dialogue-level variable isolation was not enabled, resulting in variable scopes not being divided by user.
  • Symptom: When calling the "Get Dialogue Record List" interface, the returned dialogue order does not match expectations, and user questions cannot be matched with AI replies. Cause: The offset parameter was not correctly set to retrieve dialogues sorted by time, or complete role identifiers were not included in messages, leading to disorganized data correspondence.
  • Symptom: After modifying global variables in the same dialogue, subsequent components cannot read the updated values. Cause: Variable updates were not synchronized in real time via the variables parameter during multi-turn dialogue, only the initially passed variable values were retained.

How to confirm the configuration is valid

  • Call the "Get Dialogue Record List" interface, pass the chatId parameter, and verify that only the current user's dialogue data is returned.
  • Pass the offset parameter to retrieve the dialogue list, check that the number of returned entries matches the offset setting, confirming the parameter functions as expected.
  • Modify global variables in the dialogue, pass the updated values via the variables parameter, and verify that subsequent components can read the new variable values.
  • Check the format of the messages parameter, confirm that each message is labeled with the correct role (user/assistant), ensuring normal parsing of dialogue history.

The values provided are common starting points and should be evaluated against the reader's own samples.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-10-19.