Registration is handled through the official channels below:

• Salesforce Trailhead Training

Set up your account, pick a test center or online session, and secure your date early — slots near application deadlines go quickly.

Salesforce states the following prerequisites for the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版): Basic understanding of object-oriented programming and database concepts is recommended. Prior Salesforce experience is helpful but not strictly required..

Requirements can be updated, so verify them on the official certification page before you book.

Our aftersales commitment includes a clear safety net. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims are refunded in full within seven days. The exclusions are simple: exams taken within three days of purchase are not covered, the candidate name must match the payer, and free or expired products are ineligible. Alternatively, you may exchange the product for two others of equal value at no cost.

These are the main domains of the Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) blueprint:

• Testing and Debugging
• Visualforce Development
• Security and Best Practices

The official outline continues with further domains — all covered in our question bank.

Salesforce recommends these official training resources:

• Salesforce Apex Developer Guide
• Salesforce Visualforce Developer Guide

Pair whichever course matches your background with steady question practice for the strongest preparation.

Delivery is instant: a download link appears the moment your payment clears, and an automatic email with the materials arrives within about a minute. Install on as many devices as you like, and if nothing shows up within two hours, our 24/7 support team will take care of it. Your purchase includes 365 days of free updates — every revision is emailed to you automatically — and a 50% renewal discount when the period ends.

Because the quality is built in, not claimed. Professional experts and advisors compile the DEX-450日本語 bank against the real exam's format and objectives, hard-to-answer points receive careful expert-verified coverage, and the writing stays easy to comprehend for candidates at every level. Behind the content sits well-advised aftersales service: a strictly trained, patient support team available 24/7, an open ear for constructive feedback, a free demo before purchase, and 365 days of free updates after it.