How to fix P2006: The provided value is not valid in Prisma

What this error means

The P2006 error is a Prisma validation error that occurs when you attempt to create or update a record with data that doesn't match the expected schema constraints. Prisma performs runtime validation on all data operations to ensure type safety and data integrity. This error typically happens when: - You're trying to insert a string into an integer field - You're providing a value that exceeds field length constraints - You're using an invalid enum value - You're missing required fields - You're providing data in the wrong format (like a date string that can't be parsed) Prisma validates data against your Prisma schema before sending it to the database. When validation fails, it throws the P2006 error with details about which field failed and why.

Typical symptoms

• Database operations (create, update, upsert) fail with "P2006: The provided value is not valid"
• Specific error messages like "Invalid value for argument" or "Expected X, got Y"
• API endpoints or GraphQL mutations fail when trying to save data
• Data validation fails during Prisma client operations
• Error occurs during seed data population or migration

Common causes

1. Type mismatch between provided data and schema definition (e.g., string instead of integer)
2. Missing required fields that are marked as @unique or have default values
3. Invalid enum values that don't match the defined enum options
4. String values that exceed maximum length constraints defined with @db.VarChar()
5. Date/time values in incorrect format that can't be parsed by the database
6. Numeric values outside the allowed range for the database column type
7. JSON data that doesn't match the expected structure or contains invalid JSON

How to fix "P2006: The provided value is not valid"

Invalid `prisma.user.create()` invocation:
{
  data: {
    email: "test@example.com",
    age: "twenty-five"  // ← This is the problem
  }
}

Argument `age`: Invalid value provided. Expected Int, provided String.

// Before (wrong)
await prisma.user.create({
  data: {
    name: "John",
    age: "30",  // String instead of Int
    active: "true"  // String instead of Boolean
  }
});

// After (correct)
await prisma.user.create({
  data: {
    name: "John",
    age: 30,  // Number
    active: true  // Boolean
  }
});

// schema.prisma
model User {
  id        String   @id @default(cuid())
  email     String   @unique
  name      String?  // Optional
  age       Int      // Required - will cause P2006 if missing
}

// Wrong - missing required 'age' field
await prisma.user.create({
  data: {
    email: "test@example.com"
    // Missing 'age' field
  }
});

// Correct - includes all required fields
await prisma.user.create({
  data: {
    email: "test@example.com",
    age: 25  // Required field included
  }
});

model Post {
  id      String   @id @default(cuid())
  title   String   @db.VarChar(100)  // Max 100 characters
  content String?
}

// This will fail if title exceeds 100 characters
const longTitle = "A".repeat(150); // 150 characters

await prisma.post.create({
  data: {
    title: longTitle,  // Too long!
    content: "Some content"
  }
});

// Fix by truncating or validating length
const validTitle = longTitle.substring(0, 100);

await prisma.post.create({
  data: {
    title: validTitle,
    content: "Some content"
  }
});

npx prisma generate

import { PrismaClient, Prisma } from '@prisma/client';

const prisma = new PrismaClient();

// TypeScript will catch type mismatches at compile time
const userData: Prisma.UserCreateInput = {
  email: "test@example.com",
  age: "25",  // TypeScript error: Type 'string' is not assignable to type 'number'
};

// Correct version:
const correctUserData: Prisma.UserCreateInput = {
  email: "test@example.com",
  age: 25,  // Correct type
};

await prisma.user.create({ data: correctUserData });

import { z } from 'zod';

const userSchema = z.object({
  email: z.string().email(),
  age: z.number().int().positive(),
  name: z.string().optional()
});

const validatedData = userSchema.parse(inputData);
await prisma.user.create({ data: validatedData });

Advanced notes

app.use(express.json());
app.use((req, res, next) => {
  // Convert string numbers to actual numbers
  if (req.body.age && typeof req.body.age === 'string') {
    req.body.age = parseInt(req.body.age, 10);
  }
  next();
});

const port = parseInt(process.env.PORT || '3000', 10);
const isProduction = process.env.NODE_ENV === 'production';

const prisma = new PrismaClient({
  log: ['query', 'info', 'warn', 'error']
});

try {
  await prisma.user.create({ data: userData });
} catch (error) {
  console.error('Full error details:', JSON.stringify(error, null, 2));
  if (error instanceof Prisma.PrismaClientValidationError) {
    console.error('Validation error details:', error.message);
  }
}

function validateUserData(data: any): Prisma.UserCreateInput {
  // Add your validation logic here
  if (typeof data.age !== 'number') {
    throw new Error('Age must be a number');
  }
  return data;
}

Frequently asked questions

What does "P2006: The provided value is not valid" mean?

The P2006 error is a Prisma validation error that occurs when you attempt to create or update a record with data that doesn't match the expected schema constraints. Prisma performs runtime validation on all data operations to ensure type safety and data integrity. This error typically happens when: - You're trying to insert a string into an integer field - You're providing a value that exceeds field length constraints - You're using an invalid enum value - You're missing required fields - You're providing data in the wrong format (like a date string that can't be parsed) Prisma validates data against your Prisma schema before sending it to the database.

How do I fix "P2006: The provided value is not valid"?

The Prisma P2006 error occurs when you try to insert or update data that violates your database schema constraints. This validation error prevents invalid data from reaching your database and helps maintain data integrity.

What causes "P2006: The provided value is not valid"?

Type mismatch between provided data and schema definition (e.g., string instead of integer) Missing required fields that are marked as @unique or have default values Invalid enum values that don't match the defined enum options

Is the "P2006: The provided value is not valid" error serious?

It is a medium-severity error — more of a blocker than a risk. The steps above resolve it.

Related errors

• P2007: Data validation error

  How to fix "P2007: Data validation error" in Prisma

  MEDIUM

• P2005: The value stored in the database is invalid for the field's type

  P2005: The value stored in the database is invalid for the field's type

  MEDIUM

• P2008: Failed to parse the query `{query_parsing_error}` at `{query_position}`

  How to fix "P2008: Failed to parse the query" in Prisma

  MEDIUM

• P2004: A constraint failed on the database

  How to fix "P2004: A constraint failed on the database" in Prisma

  MEDIUM

• P1002: The database server was reached but timed out

  Database server was reached but timed out

  HIGH

• P1013: The provided database string is invalid

  The provided database string is invalid

  HIGH

Official resources & further reading

• 📚Prisma Official Documentation
• 📖
  prisma.io - error reference(Official Docs)
• 💬
  stackoverflow.com - prisma+p2006(Stack Overflow)
• 🐙
  github.com - issues(GitHub)
• 📖
  prisma.io - models(Official Docs)
• 📖
  prisma.io - crud(Official Docs)